Scan Tool Data Definitions - Cruise Control

SCAN TOOL DATA DEFINITIONS (CRUISE CONTROL)

The Scan Tool Data Definitions list contains a brief description of all of the cruise control related parameters that are available on the scan tool. On vehicles equipped with a 5.7L, a powertrain control module (PCM) is used. On vehicles equipped with a 2.6L, 3.2L, or a 3.6L, an engine control module (ECM) is used.

Battery Voltage: The scan tool displays the battery voltage. The ECM monitors the battery positive voltage circuit.

Clutch Start Switch (If Equipped): The scan tool displays Applied or Released. The ECM monitors the signal circuit of the clutch start switch. A closed switch is displayed as Applied.

Clutch Pedal Switch: The scan tool displays Applied or Released. The PCM monitors the signal circuit of the clutch pedal position (CPP) switch. A closed switch is displayed as Released.

Cruise Clutch Switch (If Equipped): The scan tool displays Applied or Released. The ECM monitors the signal circuit of the clutch pedal position (CPP) switch. A closed switch is displayed as Released.

Cruise Control Active: The scan tool displays Yes or No. The ECM/PCM determines the current status of cruise control operation. An active cruise control system is displayed as Yes.

Cruise Disengage (1-8) History: The scan tool displays the last 8 reasons why the cruise control system was disengaged. Refer to the Scan Tool Data Definitions (Disengaged History) for descriptions. Scan Tool Data Definitions - Disengage History

Cruise Engaged: The scan tool displays Yes or No. When the ECM detects that the cruise control system has been requested, and the cruise engagement criteria has been met, the cruise control activates and the scan tool displays Yes.

Cruise Inhibited: The scan tool displays OK or Fault. Fault is displayed when the ECM detects a malfunction that affects the cruise control system.

Cruise Inhibit Reason: The scan tool displays the reason whey the cruise control system is inhibited.

Cruise On/Off Switch: The scan tool displays On or Off. The ECM/PCM monitors the signal circuit of the cruise control switch. A closed switch is displayed as On.

Cruise Release Brake Pedal Switch: The scan tool displays Applied or Released. The ECM/PCM monitors the TCC brake switch/cruise control release signal circuit. A closed switch is displayed as Released.

Cruise Resume/Accel. Switch: The scan tool displays On or Off. The TAC module monitors the signal circuit of the cruise control switch. The TAC module sends a UART serial data message to the PCM indicating the status of the resume/accel (+) switch. The scan tool displays On, when the cruise on/off switch is ON and the resume/accel button is pressed.

Cruise Resume/Accel. Switch: The scan tool displays On or Off. The ECM monitors the signal circuit of the cruise control switch. The scan tool displays On, when the cruise on/off switch is ON and the resume/accel (+) button is pressed, the ECM detects a predetermined voltage value for the resume/accel. switch.

Cruise Set/Coast Switch: The scan tool displays On or Off. The TAC module monitors the signal circuit of the cruise control switch. The TAC module sends a UART serial data message to the PCM indicating the status of the set/coast (-) switch. The scan tool displays ON, when the cruise on/off switch is ON and the cruise set/coast button is pressed.

Cruise Set/Coast Switch: The scan tool displays On or Off. The ECM monitors the signal circuit of the cruise control switch. The scan tool displays On, when the cruise on/off switch is ON and the ECM detects a predetermined voltage value for the set/coast (-) switch.

Cruise - VSS Out of Range: The scan tool displays Yes or No. The ECM monitors the signal circuit of the vehicle speed signal sensor. When the ECM detects that the vehicle speed is below 40.2 km/h (25 mph), the scan tool displays Yes.

Engine Speed: The scan tool displays 0 to 9999 RPM. The ECM/PCM monitors the CKP signal circuit in order to determine the engine RPM.

Extended Travel Brake Pedal Switch: The scan tool displays Applied or Released. The ECM monitors the signal circuit of the extended travel brake pedal switch. A closed switch is displayed as Released.

Ignition 1 Signal: The scan tool displays 6 volts to 18 volts. The PCM monitors the ignition 1 signal circuit in order to determine the system voltage.

Initial Brake Apply Signal: The scan tool displays Applied or Released. The EBCM monitors the signal circuit of the brake pedal position sensor. When the ECM receives a class 2 message from the EBCM indicating that the brake pedal has been applied the scan tool displays Applied.

Reduced Engine Power: The scan tool displays Active or Inactive. When the PCM detects that reduced engine power condition exists, the scan tool displays Active.

Stoplamp Pedal Switch: The scan tool displays Applied or Released. The PCM and the TAC module monitor the BAS relay coil supply voltage circuit. When the brake pedal is pressed, the scan tool displays Applied.

Stoplamp Pedal Switch: The scan tool displays Applied or Released. The ECM monitors the stop lamp switch signal circuit. When the brake pedal is pressed, the scan tool display Applied.

TAC/PCM Communication Signal: The scan tool displays OK or Fault. The PCM uses the UART serial data circuit in order to communicate with the TAC module. If the communication between the PCM and the TAC module is interrupted, the scan tool displays Fault.

Traction Control Signal: The scan tool displays Active or Inactive. When the PCM detects that the traction control is active, the scan tool displays Active.

Traction Control Status: The scan tool displays Active or Inactive. When the ECM detects that the traction control is active, the scan tool displays Active.

Vehicle Speed: The scan tool displays km/h or mph. The ECM monitors the signal circuit of the vehicle speed signal sensor.

Vehicle Speed Sensor: The scan tool displays 0 to 150 km/h (93.2 mph). The ECM/PCM monitors the vehicle speed sensor signal circuit in order to calculate the vehicle speed for display.